- 增加 ISelect Aggregate(lambda, out var result) 方法；

FreeSql.Tests/FreeSql.Tests/Dameng/Curd/DamengSelectTest.cs

@@ -812,6 +812,10 @@ namespace FreeSql.Tests.Dameng
         public void ToAggregate()
         {
             var sql = select.ToAggregate(a => new { sum = a.Sum(a.Key.Id + 11.11), avg = a.Avg(a.Key.Id), count = a.Count(), max = a.Max(a.Key.Id), min = a.Min(a.Key.Id) });
+
+            select
+                .Aggregate(a => new { sum = a.Sum(a.Key.Id), count = a.Count() }, out var output)
+                .ToList();
         }
         [Fact]
         public void OrderBy()

FreeSql.Tests/FreeSql.Tests/UnitTest3.cs

@@ -231,8 +231,6 @@ namespace FreeSql.Tests
                     Id = a.Key, 
                     EdiId1 = SqlExt.Max(a.Key).Over().PartitionBy(new { a.Value.EdiId, a.Value.Id }).OrderByDescending(new { a.Value.EdiId, a.Value.Id }).ToValue(),
                     EdiId2 = SqlExt.Max(a.Key).Over().PartitionBy(a.Value.EdiId).OrderByDescending(a.Value.Id).ToValue(),
-
-                    Sub1 = g.sqlserver.Select<Edi>().Where(b => b.Id == a.Key).Count()
                 });
 
             var sqlextGroupConcat = g.mysql.Select<Edi, EdiItem>()